How to Fix Error Code 80072-78 Office 365 – Tutorial

How To Fix 80072-78 Error Code in Office 365

Repair Difficulty : Medium

Step 1: Disable Firewall

For Windows 7 and later

1) Click Start Button and then Click on “Control Panel” icon. 2) In Control Panel , Click on “Windows Firewall”. 3) Click On “Turn Windows Firewall on or off”Note: You will need Admin rights to enable or disable Windows firewall. 4) Finally Click on “Turn off Windows Firewall (not recommended)” under each of the active network connections.

Warning: You can activate Microsoft Windows Firewall after Office 365 repair is complete.